Bridge Type
Main Span(s): Steel [3] Arch - Deck [11]
Approach Span(s): Prestressed concrete continuous [6] Mixed types [20]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 602.6 m = 1977.1 ft
Main Spans: 3 at 141.7 m = 464.9 ft
Approach Spans: 7
Skew: 20
Width, Roadway: 19 m = 62.3 ft (2 Lanes) and Out-To-Out: 27.3 m = 89.6 ft for a 19 m = 62.3 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 22.9 m = 75.1 ft
Location
Portland [59000]: Multnomah County [051], Oregon [41]
Owned by County Highway Agency [02], DOT District: 2
PORTLAND
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: HL93 [A]
Operating: 52.5 metric ton = 57.8 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 40.5 metric ton = 44.6 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Superior to present desirable criteria [9]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: February 2021 [0221] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 1 km = 0.6 mi
Traffic
ADT: 34995 (2020) and Trucks: 10%
Future ADT: 51558 (In 2025
)
